package com.hl.util;

import javax.servlet.http.HttpServletRequest;

public class IpUtil {
	   public static String getIpAddr(HttpServletRequest request) {     
		      String ip = request.getHeader("x-forwarded-for");     
		      if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {     
		         ip = request.getHeader("Proxy-Client-IP");     
		     }     
		      if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {     
		         ip = request.getHeader("WL-Proxy-Client-IP");     
		      }     
		     if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {     
		          ip = request.getRemoteAddr();     
		     }     
		     return ip;     
		} 
}
